no locality = Phillip Island, off Norfolk Island.
Occasionally regarded as conspecific with globally threatened N. meridionalis of New Zealand. N. norfolcensis is a synonym. Monotypic.
Norfolk I and adjacent Phillip I, E of Australia. At least seven specimens exist#R.
Extirpated in mid-19th century on Norfolk I, and possibly a little later on Phillip I. Last known living individual was in captivity in London, England, in 1851#R. Species said to have been very tame and easily caught, and was therefore an easy target for human settlers, who killed it for food; habitat clearance, too, probably played a part in its extinction.
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